/* 
  Design System: The Precision Architect
  Theme: CalidadFerretera
  Description: Industrial Editorial Excellence
*/

:root {
  /* Brand Colors */
  --primary: #ae0011;
  --primary-container: #d71920;
  
  /* Neutral Palette (Architectural Surfaces) */
  --surface: #fcf9f8;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f6f3f2;
  --surface-container: #ebe8e7;
  --surface-container-high: #dedbd9;
  --surface-container-highest: #e5e2e1;
  
  /* Text & Accents */
  --on-surface: #1A1A1A;
  --on-surface-variant: #4A4A4A;
  --outline-variant: rgba(26, 26, 26, 0.15); /* Ghost Border */
  
  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing Scale */
  --spacing-6: 1.5rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
}

/* Base Styles */
body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  text-transform: uppercase;
}

/* Typography Utilities */
.text-display-lg { font-size: 3.5rem; }
.text-headline-md { font-size: 2rem; }
.text-body-md { font-size: 0.875rem; }
.technical-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05rem;
  color: var(--on-surface-variant);
}

/* The No-Line Rule: Sectioning & Layout */
section {
  border: none !important;
}

.bg-surface-low { background-color: var(--surface-container-low); }
.bg-surface-highest { background-color: var(--surface-container-highest); }

/* Components: Precision over Decoration */

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 0.125rem; /* rounded-sm */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 20px 40px rgba(26, 26, 26, 0.06); /* Ambient Shadow */
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  padding: 0.75rem 2rem;
  border-radius: 0.125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 2px solid var(--outline-variant);
  color: var(--on-surface);
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background-color: var(--surface-container);
  border-color: var(--on-surface);
}

/* Cards */
.card, .product-card {
  background-color: var(--surface-container-lowest);
  border: none !important;
  border-radius: 0.125rem;
  transition: background-color 0.3s ease;
}

.card:hover, .product-card:hover {
  background-color: var(--surface-container-low);
}

/* Inputs: Precision Technical Form Look */
.form-input, 
input[type="text"], 
input[type="email"], 
input[type="number"], 
input[type="tel"], 
input[type="password"], 
textarea, 
select {
  width: 100%;
  background-color: white !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: 2px !important; /* Minimalist soften */
  padding: 0.75rem 1rem !important;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--on-surface);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none !important;
}

.form-input::placeholder {
  color: #999;
  font-size: 0.8125rem;
  font-weight: 400;
}

.form-input:focus, 
input:focus, 
textarea:focus, 
select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 1px var(--primary);
  background-color: white !important;
}

/* Select2 Synchronization */
.select2-container--default .select2-selection--single {
  background-color: white !important;
  border: 1px solid var(--outline-variant) !important;
  border-radius: 2px !important;
  height: 2.75rem !important; /* Matches 0.75rem padding + font */
  padding: 0.375rem 0.5rem !important;
  outline: none !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
  line-height: inherit !important;
  color: var(--on-surface) !important;
  font-size: 0.875rem !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
  height: 2.5rem !important;
}

.select2-container--default.select2-container--focus .select2-selection--single {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 1px var(--primary);
}

/* Glassmorphism Utilities */
.glass-sheet {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Scrollbar: Industrial Red */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}
::-webkit-scrollbar-track {
  background: var(--surface);
}
::-webkit-scrollbar-thumb {
  background: var(--primary);
}

/* Header & Navigation Fixes */
.site-header {
  background-color: var(--surface-container-lowest);
  border-bottom: 2px solid var(--surface-container);
}

/* Search Bar Update */
.search-bar input {
  background-color: var(--surface-container-low) !important;
  border-radius: 0 !important;
  border: none !important;
  border-bottom: 2px solid var(--outline-variant) !important;
}

/* Swiper Controls Customization */
.swiper-button-prev,
.swiper-button-next {
  width: 48px;
  height: 48px;
  background-color: var(--on-surface) !important;
  color: white !important;
  border-radius: 0 !important; /* Sharp corners */
}

.swiper-button-prev:after, .swiper-button-next:after {
  font-size: 1.2rem !important;
  font-weight: 800;
}

/* Technical Details Tray (Drawer) */
.cart-panel, .drawer {
  background-color: var(--surface-container-lowest);
  border-left: 2px solid var(--surface-container);
  
  /* Restored Drawer Positioning */
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 24rem;
  box-shadow: -2px 0 20px rgba(0, 0, 0, 0.15);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  overflow-y: auto;
}

.cart-panel.open, .drawer.open {
  transform: translateX(0);
}

.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(26, 26, 26, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(4px);
}

.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}


/* Footer Refinement */
.site-footer {
  background-color: var(--on-surface);
  color: var(--surface);
  padding: var(--spacing-16) 0;
}

.site-footer h4 {
  color: white;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .text-display-lg { font-size: 2.5rem; }
  .text-headline-md { font-size: 1.5rem; }
}